RO or RO/DI

[jsullins]

Since I will be facing crazy tap conditions this time of the year on a regular basis I am looking a installing a permanent system in the my garage. Should I spend the xtra 20 or 30 bucks and get the DI unit or go with just a straight RO system? I have never checked TDS, fish are health and seem happy. I am in Mesquite, TX so our tap comes from the same place as Dallas I would assume. I am not currently breeding but would like to give it a shot in the future but I am kinda of clueless when it comes to TDS, do they need to be as low as possible or is it that big of a deal?

[plecocicho]

Normally RO is suffice for freshwater aquariums, only saltwater tanks require zero nitrates and phospahtes in water. So i guess, if your tap water doesnt have huge amont nitrate (we are speaking beyond 100ppm)or phosphate (beyond 20 ppm)in it , you wont need it

[John_Nicholson]

I took the DI off on my RO unit. Found there was no real need for it.

-john

[DiscusBR]

Less phosphates means less algae,right? I hope DI helps with algae control (I had major issues in the past with brown algae). I got a RO unit with DI and I assume there are no major disadvantages if I use it.